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Fluorescence Signal...
Fluorescence Signal Enhancement in Antibody Microarrays Using Lightguiding Nanowires
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- Verardo, Damiano (author)
- Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,AlignedBio AB
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- Liljedahl, Leena (author)
- Lund University,Lunds universitet,Create Health,Annan verksamhet, LTH,Lunds Tekniska Högskola,Institutionen för immunteknologi,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Department of Immunotechnology,Departments at LTH,Faculty of Engineering, LTH
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- Richter, Corinna (author)
- Lund University,Lunds universitet,Create Health,Annan verksamhet, LTH,Lunds Tekniska Högskola,Institutionen för immunteknologi,Institutioner vid LTH,LUCC: Lunds universitets cancercentrum,Övriga starka forskningsmiljöer,Other operations, LTH,Faculty of Engineering, LTH,Department of Immunotechnology,Departments at LTH,Faculty of Engineering, LTH,LUCC: Lund University Cancer Centre,Other Strong Research Environments
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- Agnarsson, Björn, 1977 (author)
- Chalmers University of Technology
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- Axelsson, Ulrika (author)
- Lund University,Lunds universitet,Create Health,Annan verksamhet, LTH,Lunds Tekniska Högskola,Institutionen för immunteknologi,Institutioner vid LTH,LUCC: Lunds universitets cancercentrum,Övriga starka forskningsmiljöer,Other operations, LTH,Faculty of Engineering, LTH,Department of Immunotechnology,Departments at LTH,Faculty of Engineering, LTH,LUCC: Lund University Cancer Centre,Other Strong Research Environments
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- Prinz, Christelle N. (author)
- Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,LUCC: Lunds universitets cancercentrum,Övriga starka forskningsmiljöer,Other operations, LTH,Faculty of Engineering, LTH,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,LUCC: Lund University Cancer Centre,Other Strong Research Environments
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- Höök, Fredrik, 1966 (author)
- Chalmers University of Technology
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- Borrebaeck, Carl A.K. (author)
- Lund University,Lunds universitet,Create Health,Annan verksamhet, LTH,Lunds Tekniska Högskola,Institutionen för immunteknologi,Institutioner vid LTH,LUCC: Lunds universitets cancercentrum,Övriga starka forskningsmiljöer,Other operations, LTH,Faculty of Engineering, LTH,Department of Immunotechnology,Departments at LTH,Faculty of Engineering, LTH,LUCC: Lund University Cancer Centre,Other Strong Research Environments
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- Linke, Heiner (author)
- Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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(creator_code:org_t)
- 2021-01-16
- 2021
- English.
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In: Nanomaterials. - : MDPI AG. - 2079-4991. ; 11:1, s. 1-11
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Abstract
Subject headings
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- Fluorescence-based detection assays play an essential role in the life sciences and medicine. To offer better detection sensitivity and lower limits of detection (LOD), there is a growing need for novel platforms with an improved readout capacity. In this context, substrates containing semiconductor nanowires may offer significant advantages, due to their proven light-emission enhancing, waveguiding properties, and increased surface area. To demonstrate and evaluate the potential of such nanowires in the context of diagnostic assays, we have in this work adopted a well-established single-chain fragment antibody-based assay, based on a protocol previously designed for biomarker detection using planar microarrays, to freestanding, SiO2-coated gallium phosphide nanowires. The assay was used for the detection of protein biomarkers in highly complex human serum at high dilution. The signal quality was quantified and compared with results obtained on conventional flat silicon and plastic substrates used in the established microarray applications. Our results show that using the nanowire-sensor platform in combination with conventional readout methods, improves the signal intensity, contrast, and signal-to-noise by more than one order of magnitude compared to flat surfaces. The results confirm the potential of lightguiding nanowires for signal enhancement and their capacity to improve the LOD of standard diagnostic assays.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Medicinteknik -- Medicinsk laboratorie- och mätteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Medical Engineering -- Medical Laboratory and Measurements Technologies (hsv//eng)
- NATURVETENSKAP -- Kemi -- Analytisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Analytical Chemistry (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinsk bioteknologi -- Biomedicinsk laboratorievetenskap/teknologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Medical Biotechnology -- Biomedical Laboratory Science/Technology (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology -- Nano-technology (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
Keyword
- nanowire sensors
- biomarker discovery
- antibody microarray
- Antibody microarray
- Biomarker discovery
- Nanowire sensors
Publication and Content Type
- art (subject category)
- ref (subject category)
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Verardo, Damiano
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Liljedahl, Leena
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Richter, Corinna
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Agnarsson, Björn ...
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Axelsson, Ulrika
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Prinz, Christell ...
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Höök, Fredrik, 1 ...
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Borrebaeck, Carl ...
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Linke, Heiner
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Nanomaterials
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Chalmers University of Technology
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Lund University